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	Genesis of hydrothermal-sedimentary barite deposits, W.Hunan and E.Guizhou, China
	Wu, GD ; Yang, CY ; Chen, QY
	1999
英文摘要	Major hydrothermal barite deposits occur in west Hunan and east Guizhou. The majority of the black-hosted barite, containing 1-3% primary organic matter, was derived during hydrothermal and organic processes. The barite sedimentology and geochemistry shows deposition during early Cambrian crustal hotspot activity in a continental margin. Although the Cambrian black shale sediments were deposited in anoxic environments, the extent of reduction was low. Ba was derived intially from hydrothermal gas and liquid, and was then enriched biologically. Seawater S was biologically fractionated, resulting in delta(34)S up to 41.65 parts per thousand.; Mineralogy; Mining & Mineral Processing; CPCI-S(ISTP); 0
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/312192]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Wu, GD,Yang, CY,Chen, QY. Genesis of hydrothermal-sedimentary barite deposits, W.Hunan and E.Guizhou, China. 1999-01-01.

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